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EP0132304B1 - Composés peptides hydroxy substitués - Google Patents

Composés peptides hydroxy substitués Download PDF

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Publication number
EP0132304B1
EP0132304B1 EP84304227A EP84304227A EP0132304B1 EP 0132304 B1 EP0132304 B1 EP 0132304B1 EP 84304227 A EP84304227 A EP 84304227A EP 84304227 A EP84304227 A EP 84304227A EP 0132304 B1 EP0132304 B1 EP 0132304B1
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EP
European Patent Office
Prior art keywords
hydrogen
alkyl
carbons
compound
hydroxy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP84304227A
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German (de)
English (en)
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EP0132304A3 (en
EP0132304A2 (fr
Inventor
Eric M. Gordon
Jollie D. Godfrey, Jr.
Sesha I. Natarajan
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ER Squibb and Sons LLC
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ER Squibb and Sons LLC
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Priority to AT84304227T priority Critical patent/ATE43848T1/de
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Publication of EP0132304A3 publication Critical patent/EP0132304A3/en
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06008—Dipeptides with the first amino acid being neutral
    • C07K5/06017—Dipeptides with the first amino acid being neutral and aliphatic
    • C07K5/06026—Dipeptides with the first amino acid being neutral and aliphatic the side chain containing 0 or 1 carbon atom, i.e. Gly or Ala
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/04—Centrally acting analgesics, e.g. opioids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/12—Antihypertensives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06008—Dipeptides with the first amino acid being neutral
    • C07K5/06017—Dipeptides with the first amino acid being neutral and aliphatic
    • C07K5/0606—Dipeptides with the first amino acid being neutral and aliphatic the side chain containing heteroatoms not provided for by C07K5/06086 - C07K5/06139, e.g. Ser, Met, Cys, Thr
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06008—Dipeptides with the first amino acid being neutral
    • C07K5/06078—Dipeptides with the first amino acid being neutral and aromatic or cycloaliphatic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06086—Dipeptides with the first amino acid being basic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06086—Dipeptides with the first amino acid being basic
    • C07K5/06095—Arg-amino acid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06139—Dipeptides with the first amino acid being heterocyclic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
    • C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
    • C07K5/06—Dipeptides
    • C07K5/06191—Dipeptides containing heteroatoms different from O, S, or N
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00—Medicinal preparations containing peptides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/80—Antihypertensive peptides

Definitions

  • This invention is directed to hydroxy substituted peptide compounds of formula and salts thereof (I)
  • This invention in its broadest aspects relates to the hydroxy substituted peptide compounds of formula I above, to compositions and the use of such compounds as pharmaceutical agents.
  • J. Med. Chem. 1982, pages 996 to 999 discloses [[3-(benzoylamino)-2-oxo-4-phenylbutyl]-glycyl]-L-proline.
  • lower alkyl used in defining various symbols refers to straight or branched chain radicals having up to seven carbons.
  • the preferred lower alkyl groups are up to four carbons with methyl and ethyl most preferred.
  • lower alkoxy and lower alkylthio refer to such lower alkyl groups attached to an oxygen or sulfur.
  • cycloalkyl refers to saturated rings of 3 to 7 carbon atoms with cyclopentyl and cyclohexyl being most preferred.
  • halogen refers to chloro, bromo and fluoro.
  • halo substituted lower alkyl refers to such lower alkyl groups described above in which one or more hydrogens have been replaced by chloro, bromo or fluoro groups such as trifluoromethyl, which is preferred, pentafluoroethyl, 2,2,2-trichloroethyl, chloromethyl and bromomethyl.
  • the compounds of formula I are obtained by treating a compound of the formula with a conventional reducing agent such as sodium borohydride, sodium cyanoborohydride, diisobutyl aluminum hydride and lithium tri t-butoxy aluminum hydride.
  • a conventional reducing agent such as sodium borohydride, sodium cyanoborohydride, diisobutyl aluminum hydride and lithium tri t-butoxy aluminum hydride.
  • the compounds of formula II can be prepared by various methods.
  • R is hydrogen
  • a carboxymethyl peptide ester of the formula can be converted to its acid chloride and then reacted with an oxazolone of the formula wherein R 40 and R 6 (in the definition of X) are protecting groups such as, for example, wherein R 40 is benzyloxycarbonyl and R 6 is benzyl.
  • R 40 and R 6 are protecting groups such as, for example, wherein R 40 is benzyloxycarbonyl and R 6 is benzyl.
  • Treatment with the reducing agent followed by removal of the R 40 and R 6 protecting groups, for example, by hydrogenation yields the product of formula I wherein R 6 is hydrogen.
  • the carboxymethyl peptide ester of formula III can be prepared by reacting the peptide ester of the formula with tert-butyl bromoacetate and then introducing the R 40 protecting group, for example, by treating with benzyl chloroformate.
  • the compounds of formula II can also be prepared by reacting a ketone of the formula wherein halo is CI or Br with the peptide ester of the formula in the presence of base such as sodium bicarbonate. Treatment with the reducing agent followed by removal of the R 6 ester group yields the product of formula I wherein R 6 is hydrogen.
  • the ketone intermediate of formula VI can be prepared by treating a ketone of the formula wherein R 40 is a protecting group such as benzyloxycarbonyl with hydrogen bromide and acetic acid followed by reaction with the acid halide of the formula in the presence of base such as sodium bicarbonate.
  • the compounds of formula II can also be prepared by reacting an aminoketone of the formula particularly the hydrochloride salt thereof with the halo ace tyl amino or imino acid ester of the formula wherein R 6 in the definition of X is an easily removable ester protecting group and halo is CI or Br.
  • the compounds of formula II can also be prepared by coupling an aminoketone carboxylic acid or its chemical equivalent of the formula with the amino or imino acid or ester of the formula (XIII)
  • This reaction can be performed in the presence of a coupling agent such as dicyclohexylcarbodiimide, or by conversion of the acid of formula XII to its mixed anhydride, symmetrical anhydride, acid halide, active ester or by use of Woodward reagent K or N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline.
  • a coupling agent such as dicyclohexylcarbodiimide
  • R is hydrogen then that N-atom can be protected by an easily removable protecting group such as benzyloxycarbonyl.
  • the aminoketone of formula X can be prepared by converting the carboxyalkylamine of the formula wherein R 40 is a protecting group such as benzyloxycarbonyl, to its acid chloride and then reacting with an oxazolone of formula IV to yield Removal of the R 40 protecting group such as by hydrogenation yields the reactant of formula X.
  • the aminoketone of formula X wherein R is other than hydrogen can also be prepared by reacting the ketone of formula VI with a substituted amine of the formula
  • the aminoketone carboxylic acid of formula XII can be prepared by reacting the aminoketone of formula X with a haloacetic acid ester of the formula wherein Prot is an easily removable ester protecting group such as t-butyl to yield the ester Removal of the ester protecting group gives the reactant of formula XII.
  • R, R 1 R 3 and R 5 are then the hydroxyl, amino, imidazolyl, mercaptan or guanidinyl function should be protected during the reaction.
  • Suitable protecting groups include benzyloxycarbonyl, t-butoxycarbonyl, benzyl, benzhydryl, trityl, and nitro in the case of guanidinyl.
  • the protecting group is removed by hydrogenation, treatment with acid, or other known methods following completion of the reaction.
  • ester products of formula I wherein R 6 is lower alkyl, benzyl or benzhydryl can be chemically treated such as with sodium hydroxide in aqueous dioxane or with trifluoroacetic acid to yield the products of formula I wherein R 6 is hydrogen.
  • the benzyl and benzhydryl esters can also be hydrogenated, for example, by treating with hydrogen in the presence of a palladium on carbon catalyst.
  • ester products of formula I wherein R 6 may be obtained by employing the peptide of formula V or VI or the haloacetyl amino or imino acid ester of formula XI in the above reactions with such ester group already in place.
  • ester reactants can be prepared by treating the peptide of formula V or VII or the haloacetyl amino or imino acid ester of formula XI wherein R 6 is hydrogen with an acid chloride such as so as to protect the N-atom.
  • the protected compound is then reacted in the presence of a base with a compound of the formula wherein L is a leaving group such as chlorine, bromine, tolylsulfonyl, followed by removal of the N-protecting group such as by treatment with acid or hydrogenation.
  • ester products of formula I wherein R 6 is can also be obtained by treating the product of formula I wherein R 6 is hydrogen with a molar excess of the compound of formula XIX.
  • ester products of formula I wherein R 6 is can be prepared by treating the product of formula I wherein R 6 is hydrogen with a molar excess of the compound of the formula
  • ester products of formula I wherein R 6 is can be prepared by coupling the product of formula I wherein R 6 is hydrogen with a molar excess of the compound of the formula or the formula in the presence of a coupling agent such as dicyclohexylcarbodiimide followed by removal of the hydroxyl protecting groups.
  • a coupling agent such as dicyclohexylcarbodiimide followed by removal of the hydroxyl protecting groups.
  • ester products of formula I wherein R 6 is can be prepared by coupling the product of formula I wherein R 6 is hydrogen with a molar excess of the compound of the formula or the formula in the presence of a coupling agent such as dicyclohexylcarbodiimide.
  • esters of formula I wherein R 6 is lower alkyl can be obtained from the carboxylic acid compounds, i.e., wherein R 6 is hydrogen, by conventional esterification procedures, e.g., treatment with an alkyl halide of the formula R 6 -halo or an alcohol of the formula R 6 -OH.
  • the peptide esters of formulas V and VII may be obtained by coupling the hydrochloride salt of the amino or imino acid ester of formula XIII wherein R 6 is, for example, benzyl with the N-protected amino acid of the formula wherein Prot is a protecting group such as Preferably, this reaction is performed in the presence of a coupling agent such as dicyclohexylcarbodiimide. Removal of the N-protecting group, for example, by treatment with trifluoroacetic acid yields the peptide esters of formulas V and VII.
  • Preferred compounds of this invention with respect to the peptide part of the structure of formula I are those wherein:
  • Preferred compounds of this invention with respect to the hydroxy substituted portion of the structure of formula I are those wherein:
  • the compounds of formula I wherein R 6 is hydrogen form salts with a variety of inorganic or organic bases.
  • the nontoxic, pharmaceutically acceptable salts are preferred, although other salts are also useful in isolating or purifying the product.
  • Such pharmaceutically acceptable salts include metal salts such as sodium, potassium or lithium, alkaline earth metal salts such as calcium or magnesium, and salts derived from amino acids such as arginine, lysine, etc.
  • the salts are obtained by reacting the acid form of the compound with an equivalent of the base supplying the desired ion in a medium in which the salt precipitates or in aqueous medium and then lyophilizing.
  • the compounds of formula I form salts with a variety of inorganic and organic acids.
  • the non-toxic pharmaceutically acceptable salts are preferred, although other salts are also useful in isolating or purifying the product.
  • Such pharmaceutically acceptable salts include those formed with hydrochloric acid, methanesulfonic acid, sulfuric acid, maleic acid, etc.
  • the salts are obtained by reacting the product with an equivalent amount of the acid in a medium in which the salt precipitates.
  • the peptide portion of the molecule of the products of formula I represented by is in the L-configuration (R 1 is other than hydrogen).
  • R 1 is other than hydrogen
  • One or two asymmetric centers are also present in the hydroxy substituted portion of the molecule as represented by the * in formula I.
  • R 3 is hydrogen, then only one center is present.
  • the compounds of formula I can exist in diastereoisometric forms or in mixtures thereof.
  • the above described processes can utilize racemates, enantiomers or diastereomers as starting materials. When diastereomeric products are prepared, they can be separated by conventional chromatographic or fractional crystallization methods.
  • the compounds of formula I, and the pharmaceutically acceptable salts thereof, are hypotensive agents. They inhibit the conversion of the decapeptide angiotensin I to angiotensin II and, therefore, are useful in reducing or relieving angiotensin related hypertension.
  • Angiotensin I is converted by angiotensin converting enzyme (ACE) to angiotensin II.
  • ACE angiotensin converting enzyme
  • the latter is an active pressor substance which has been implicated as the causative agent in several forms of hypertension in various mammalian species, e.g., humans.
  • the compounds of this invention intervene in the angiotensinogen - (renin) ⁇ angiotensin I ⁇ angiotensin II sequence by inhibiting angiotensin converting enzyme and reducing or eliminating the formation of the pressor substance angiotensin II.
  • renin renin
  • angiotensin dependent hypertension in a species of mammal e.g., humans
  • a single dose, or preferably two to four divided daily doses, provided on a basis of about 0.1 to 100 mg., preferably about 1 to 50 mg., per kg. of body weight per day is appropriate to reduce blood pressure.
  • the substance is preferably administered orally, but parenteral routes such as the subcutaneous, intramuscular, intravenous or intraperitoneal routes can also be employed.
  • the compounds of this invention can also be formulated in combination with a diuretic for the treatment of hypertension.
  • a combination product comprising a compound of this invention and a diuretic can be administered in an effective amount which comprises a total daily dosage of about 30 to 600 mg., preferably about 30 to 330 mg. of a compound of this invention, and about 15 to 300 mg., preferably about 15 to 200 mg. of the diuretic, to a mammalian species in need thereof.
  • Exemplary of the diuretics contemplated for use in combination with a compound of this invention are the thiazide diuretics, e.g., chlorothiazide, hydrochlorothiazide, flumethiazide, hydroflumethiazide, bendroflumethiazide, methyclothiazide, trichloromethiazide, polythiazide or benzthiazide as well as ethacrynic acid, ticrynafen, chlorthalidone, furosemide, musolimine, bumetanide, triamterene, amiloride and spironolactone and salts of such compounds.
  • thiazide diuretics e.g., chlorothiazide, hydrochlorothiazide, flumethiazide, hydroflumethiazide, bendroflumethiazide, methyclothiazide, trichloromethiazide, polythiazide
  • the compounds of formula I can be formulated for use in the reduction of blood pressure in compositions such as tablets, capsules or elixirs for oral administration, or in sterile solutions or suspensions for parenteral administration.
  • compositions such as tablets, capsules or elixirs for oral administration, or in sterile solutions or suspensions for parenteral administration.
  • About 10 to 500 mg. of a compound of formula I is compounded with physiologically acceptable vehicle, carrier, excipient, binder, preservative, stabilizer, flavor, etc., in a unit dosage form as called for by accepted pharmaceutical practice.
  • the amount of active substance in these compositions or preparations is such that a suitable dosage in the range indicated is obtained.
  • a composition containing one or a combination of such compounds of formula I or a pharmaceutically acceptable salt thereof pain is alleviated in the mammalian host.
  • the composition is preferably administered orally but parenteral routes such as subcutaneous can also be employed.
  • hydrochloric acid fractions are combined and back extracted with hexane and the organic layers are discarded.
  • the hydrochloric acid fraction is then basified with sodium bicarbonate (20 g.) and extracted with ethyl acetate (2 x 150 ml.).
  • the ethyl acetate fractions are combined and washed with water and brine. After drying (MgS0 4 ), the solvent is removed at reduced pressure to give 1.24 g. of (S)-N-[3-(benzoylamino)-2-oxo-4-phenylbutyl]-L-alanine, 1,1-dimethylethyl ester as a light yellow solid.
  • the aqueous fraction is then acidified with 1N hydrochloric acid and extracted with ethyl acetate (2 x 250 ml.). The ethyl acetate fractions are combined and washed with water and brine. After drying (MgS0 4 ), the solvent is removed at reduced pressure to give 2.97 g. of (S)-N-[N-(benzoylamino)-2-oxo-4-phenylbutyl]-N-[(phenylmethoxy)carbonyl]-L-alanine as a colorless foamy solid.
  • R f 0.46 sica gel; ethyl acetate:pyridine:acetic acid:water; 350:20:6:11).
  • the organic layer is extracted once more with saturated sodium bicarbonate.
  • the combined aqueous layers are acidified to pH 2.0 with 10% potassium bisulfate and extracted with ethyl acetate (3x).
  • the ethyl acetate fractions are combined, dried (Na 2 SO 4 ) and concentrated to give 3.5 g. of (4S)-1-(bromoacetyl)-4-(phenylthio)-L-proline as a viscous oil.
  • N-methyl-N-[(phenylmethoxy)carbonyl]glycine (2.33 g., 10 mmol) is dissolved in 30 ml. of tetrahydrofuran and cooled in an ice-bath.
  • Oxalyl chloride (1 ml, 11.5 mmol) is added followed by 2 drops of dimethylformamide. After stirring for 30 minutes in the ice-bath, the mixture is then stirred at room temperature for an hour. To this 0.25 ml. of oxalyl chloride is added. The mixture is evaporated, redissolved in 15 ml. of tetrahydrofuran, and stirred in an ice bath.
  • Hydrogen chloride gas is slowly bubbled into a chilled (0-5°) solution of (S)-(3-diazo-1-methyl-2- oxopropyl)carbamic acid, 1,1-dimethylethyl ester (9.58 g., 44.9 mmol) in 400 ml. of ether until the solution is colorless and nitrogen evolution ceases.
  • the solution is refrigerated for one hour, then washed with ice-water (3 x 50 ml.), dried (Na 2 S0 4 ), and evaporated to yield 9.87 g.
  • the dimethylformamide is evaporated in vacuo and the residue is taken up into ether (35 ml.), washed with half-saturated sodium bicarbonate (2 x 50 ml.) and brine (2 x 25 ml.), dried (mixture of MgS0 4 and Na 2 S0 4 ), and evaporated to give 6.02 g. of a yellow oil which darkens to orange over 2 hours.
  • This material is applied to a column of 300 g. of silica gel (230-400 mesh) and eluted with ethyl acetate-hexane (3:2). Fractions 21-27 (approximately 50 ml. each) are pooled giving 2.26 g. of crude product.
  • the R 1 protecting groups in Examples 20 to 26, the R 3 protecting group in Example 29, and the R 5 protecting group in Example 35 are removed as the last step in the synthesis.
  • the 4-azidoproline of Example 30 when treated with the reducing agent will yield a 4-aminoproline product.
  • the R 6 ester groups shown in Examples 37 to 42 are not removed.
  • reaction with the reagent listed in Col. I is performed in the presence of a coupling agent such as dicyclohexylcarbodiimide.
  • 1000 tablets each containing the following ingredients are prepared from sufficient bulk quantities by mixing the (3S)-1-[N-[3-(benzoylamino)-2-hydroxy-4-phenylbutyl]-L-alanyl]-L-proline, sodium salt and corn starch with an aqueous solution of the gelatin. The mixture is dried and ground to a fine powder. The Avicel ® and then the magnesium stearate are admixed with granulation. This mixture is then compressed in a tablet press to form 1000 tablets each containing 100 mg. of active ingredient.
  • tablets containing 100 mg. of the product of any of Examples 1 to 55 can be prepared.
  • capsules containing 50 mg. of the product of any of Examples 1 to 56 can be prepared.
  • An injectable solution is prepared as follows:
  • the active substance, preservatives, and sodium chloride are dissolved in 3 liters of water for injection and then the volume is brought up to 5 liters.
  • the solution is filtered through a sterile filter and aseptically filled into presterilized vials which are closed with presterilized rubber closures.
  • Each vial contains 5 ml. of solution in a concentration of 100 mg. of active ingredient per ml. of solution for injection.
  • an injectable solution containing 100 mg. of active ingredient per ml. of solution can be prepared for the product of any Examples 1 to 56.
  • 1000 tablets each containing the following ingredients are prepared from sufficient bulk quantities by slugging the (3S)-1-[N-[3-(benzoylamino)-2-hydroxy-4-phenylbutyl]-L-lysyl]-L-proline, sodium salt, Avicel @ , and a portion of the stearic acid.
  • the slugs are ground and passed through a #2 screen, then mixed with the hydrochlorothiazide, lactose, cornstarch, and remainder of the stearic acid.
  • the mixture is compressed into 350 mg. capsule shaped tablets in a table press.
  • the tablets are scored for dividing in half.
  • tablets can be prepared containing 100 mg. of the product of any of Examples 1 to 56.

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Claims (23)

1. Composé de formule
Figure imgb0282
éventuellement sous la forme d'un sel pharmaceutiquement acceptable, formule dans laquelle
X est
Figure imgb0283
Figure imgb0284
Figure imgb0285
Figure imgb0286
Figure imgb0287
R est l'hydrogène, un radical alkyle en C1―C7, cycloalkyle en C3―C7,
Figure imgb0288
Figure imgb0289
Figure imgb0290
R1 est l'hydrogène, un radical alkyle en C1―C7, alkyle en C1―C7 substitué par le chlore, le brome ou le fluor,
Figure imgb0291
Figure imgb0292
Figure imgb0293
Figure imgb0294
R2 est
Figure imgb0295
Figure imgb0296
R3 est l'hydrogène, un radical alkylen en C1―C7,
Figure imgb0297
Figure imgb0298
 alkyle en C1-C7 substitué par le chrome, le brome ou le fluor, -(CH2)m-cycloalkyle en C3-C7,
Figure imgb0299
Figure imgb0300
Figure imgb0301
Figure imgb0302
R4 est l'hydrogène, un radical alkyle en C1―C7,
Figure imgb0303
Figure imgb0304
R5 est l'hydrogène, un radical alkyle en C1―C7,
Figure imgb0305
Figure imgb0306
Figure imgb0307
Figure imgb0308
r est un nombre entier de 1 à 4;
R7 est l'hydrogène, un radical alkylen en C1―C7, un atome de chlore, de brome ou de fluor, le groupement hydroxy, un radical
Figure imgb0309
Figure imgb0310
un radical 1- ou 2-naphtyle de formule
Figure imgb0311
Figure imgb0312
un radical 1- ou 2-naphtyloxy de formule
Figure imgb0313
ou un radical 1- ou 2-naphtylthio de formule
Figure imgb0314
R8 est un atome d'halogène, un radical
Figure imgb0315
un radical 1- ou 2-naphtyloxy de formule
Figure imgb0316
Figure imgb0317
ou un radical 1- ou 2-naphtylthio de formule
Figure imgb0318
R9 est une fonction cétone ou
Figure imgb0319
R10 est un atome de chlore, de brome ou de fluor ou ―Y―R16;
R11, R'11, R12 et R'12 sont choisis indépendamment entre l'hydrogène et les radicaux alkyle en C1-C7, ou bien R'11, R12 et R'12 sont l'hydrogène et R11 est
Figure imgb0320
R13 est l'hydrogène, un radical alkyle de 1 à 4 atomes de carbone, alcoxy de 1 à 4 atomes de carbone, alkylthio de 1 à 4 atomes de carbone, un atome de chlore, de brome ou de fluor, ou un groupement trifluorométhyle, hydroxy, phényle, phénoxy, phénylthio ou phénylméthyle;
R14 est l'hydrogène, un radical alkyle de 1 à 4 atomes de carbone, alcoxy de 1 à 4 atomes de carbone, alkylthio de 1 à 4 atomes de carbone, un atome de chlore, de brome ou de fluor, ou un groupement trifluorométhyle ou hydroxy;
m est égal à zéro, un, deux, trois ou quatre;
p est égal à un, deux ou trois, sous réserve que p ne soit plus grand que 1 que si R13 ou R14 est l'hydrogène, un radical méthyle ou méthoxy, ou un atome de chlore ou de fluor;
R15 est l'hydrogène ou un radical alkyle de 1 à 4 atomes de carbone;
Y est l'oxygène ou le soufre;
R16 est un radical alkyle de 1 à 4 atomes de carbone, ou
Figure imgb0321
ou bien les groupements R16 forment ensemble un cycle à 5 ou 6 chaînons non substitué, ou ce même cycle dans lequel un ou plusieurs des atomes de carbone portent un substituant alkyle de 1 à 4 atomes de carbone ou di(alkyle de 1 à 4 atomes de carbone);
R19 est un radical alkyle en C1―C7, benzyle ou phénéthyle;
R20 est l'hydrogène ou un radical alkyle en C1―C7, benzyle ou phénéthyle;
R6 est l'hydrogène, ou un radical alkyle en C1―C7, benzyle, benzhydryle,
Figure imgb0322
Figure imgb0323
R17 est l'hydrogène ou un radical alkyle en C1―C7, cycloalkyle en C3―C7, ou phényle;
R18 est l'hydrogène, ou un radical alkyle en C1―C7, alcoxy en C1―C7 ou phényle, ou bien R17 et R18 forment ensemble un groupement de formule
Figure imgb0324
R24 est l'hydrogène, ou un radical alkyle en C1―C7,
Figure imgb0325
R21 et R22 sont choisis indépendamment dans le groupe composé de l'hydrogène et des radicaux alkyle en C1―C7; et
R23 est un radical alkyle en C1―C7.
2. Composé selon la revendication 1, dans lequel:
R est l'hydrogène ou un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, ou phényle;
R1 est l'hydrogène, un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, ou un groupement de formule
Figure imgb0326
Figure imgb0327
Figure imgb0328
Figure imgb0329
R4 est l'hydrogène ou un radical cyclohexyle ou phényle;
R5 est l'hydrogène ou un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone,
Figure imgb0330
Figure imgb0331
Figure imgb0332
R6 est l'hydrogène, un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, un ion sel de métal alcalin ou un groupement de formule
Figure imgb0333
Figure imgb0334
R17 est l'hydrogène ou un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, ou cyclohexyle;
R18 est un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone ou le radical phényle;
R23 est un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone;
R2 est
Figure imgb0335
R3 est un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone,
Figure imgb0336
R7 est l'hydrogène, le groupement hydroxy, un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, cyclohexyle, amine, ―O-alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone,
Figure imgb0337
1-naphtyloxy, 2-naphtyloxy, ―S-alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, 1-naphtylthio, ou 2-naDhtvlthio;
Figure imgb0338
R8 est un radical -O-alkyle ou -S-alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone,
Figure imgb0339
R9 est un radical phényle, 2-hydroxyphényle ou 4-hydroxyphényle;
Les substituants R10 sont tous deux le fluor, tous deux le chlore, ou tous deux ―Y―R16;
Y est O ou S;
R,6 est un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, ou bien les groupements R,6 forment ensemble un cycle à 5 ou 6 chaînons non substitué, ou bien ce même cycle dans lequel un ou plusieurs des atomes disponibles portent un substituant méthyle ou diméthyle;
R11, R'11, R12 et R'12 sont tous l'hydrogène ou bien R11 est un radical phényle, 2-hydroxyphényle ou 4-hydroxyphényle, et R'11, R12 et R'12 sont tous l'hydrogène;
r est un nombre entier de 1 à 4;
m est égal à zéro, un ou deux;
R13 est l'hydrogène, un groupement méthyle, méthoxy, méthylthio, un atome de chlore, de brome ou de fluor, ou le groupement hydroxy;
R14 est l'hydrogène, un radical méthyle, méthoxy ou méthylthio, un atome de chlore, de brome ou de fluor, ou le groupement hydroxy; et
R24 est le radical phényle.
3. Composé selon la revendication 2, dans lequel
Figure imgb0340
R est l'hydrogène ou le radical méthyle;
R1 est l'hydrogène, le radical méthyle, ou -(CH2)4-NH2;
R6 est l'hydrogène, un radical alkyle à chaîne droite ou ramifiée de 1 à 4 atomes de carbone, ou un ion sel de métal alcalin;
R4 est le radical cyclohexyle ou phényle et R5 est l'hydrogène, ou bien R4 est l'hydrogène et R5 est un radical méthyle,
Figure imgb0341
Figure imgb0342
R7 est l'hydrogène, ou un radical cyclohexyle, alcoxy de 1 à 4 atomes de carbone,
Figure imgb0343
m est égal à zéro, un ou deux;
R13 est l'hydrogène, un radical méthyle, méthoxy ou méthylthio, un atome de chlore, de brome ou de fluor, ou le groupement hydroxy; et
t est égal à 2 ou 3.
4. Composé selon la revendication 4, dans lequel:
X est
Figure imgb0344
R2 est le radical phényle; et
R3 est le radical méthyle.
5. Composé selon la revendication 4, dans lequel:
R5 est ―CH2―CH(CH3)2;
R6 est l'hydrogène;
R est l'hydrogène et
R1 est
Figure imgb0345
6. Composé selon la revendication 5, qui est l'isomère A du monochlorhydrate de la (3S)-N-[N-[3-(benzoylamino)-2-hydroxybutyl]-L-phénylalanyl]-L-leucine
Figure imgb0346
7. Composé selon la revendication 5, qui est l'isomère B du monochlorhydrate de la (3S)-N-[N-[3-(benzoylamino)-2-hydroxybutyl]-L-phénylalanyl]-L-leucine
Figure imgb0347
8. Composé selon la revendication 3, dans lequel X est
Figure imgb0348
R2 est le radical phényle; et
R3 est
Figure imgb0349
9. Composé selon la revendication 3, dans lequel: X est
Figure imgb0350
R2 est le radical phényle; et
R3 est
Figure imgb0351
10. Composé selon la revendication 9, dans lequel R7 est l'hydrogène.
11. Composé selon la revendication 10, dans lequel:
R6 est l'hydrogène;
R est l'hydrogène; et
R1 est le radical méthyle.
12. Composé selon la revendication 11, qui est le monochlorhydrate de la (3S)-1-[N-[3-(benzoylamino)-2-hydroxy-4-phénylbutyl]-L-alanyl)-L-proline.
13. Composé selon la revendication 10, dans lequel:
R6 est l'hydrogène;
R est le radical méthyle; et
R1 est l'hydrogène.
14. Composé selon la revendication 13, qui est l'isomère A du monochlorhydrate de la (3S)-1-[[[3-(benzoylamino)-2-hydroxy-4-phénylbutyl]méthylamino]acétyl]-L-proline
Figure imgb0352
15. Composé selon la revendication 13, qui est l'isomère B du monochlorhydrate de la (3S)-1-[[[3-(benzoylamino)-2-hydroxy-4-phénylbutyl]-méthylamino]acétyl]-L-proline
Figure imgb0353
16. Composé selon la revendication 10, dans lequel:
Ra est l'hydrogène;
R est l'hydrogène; et
R1 est ―(CH2)4―NH2.
17. Composé selon la revendication 16, qui est le dichlorhydrate de la (3S)-1-[N-[3-(benzoylamino)-2-hydroxy-4-phénylbutyl]-L-lysyl]-L-proline.
18. Composé selon la revendication 9, dans lequel:
R7 est
Figure imgb0354
19. Composé selon la revendication 18, dans lequel:
R6 est l'hydrogène;
R est le radical méthyle; et
R1 est l'hydrogène.
20. Composé selon la revendication 19, qui est le monochlorhydrate de la (4S)-1-[[[3-(benzoylamino)-2-hydroxy-4-phénylbutyl]-méthylamino]-acétyl]-4-(phénylthiol-L-proline.
21. Composition pharmaceutique de traitement de l'hypertension comprenant un porteur pharmaceutiqement acceptable et un anti-hypertenseur de formule
Figure imgb0355
dans laquelle R, R1, R2, R3 et X sont tels que définis dans la revendication 1.
22. Composition pharmaceutique utilisable comme analgésique, comprenant un porteur pharmaceutiquement acceptable et un inhibiteur de l'enképhalinase, de formule
Figure imgb0356
dans laquelle R, R1, R2, R3, R5 et R6 sont tels que définis dans la revendication 1.
23. Utilisation d'un composé selon l'une quelconque des revendications 1 à 20 pour la fabrication d'un médicament qui a une action anti-hypertensive ou analgésique chez les mammifères.
EP84304227A 1983-07-21 1984-06-22 Composés peptides hydroxy substitués Expired EP0132304B1 (fr)

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